Prior to 2008, missing data and not applicable data were left as blank. These values are not differentiated. The current policy is to identify the missing data as follows:-a coded value would be composed of 9s such that the entire length of the field is filled. For example a code of' '999' would be used for a missing field of three characters. -not applicable or skipped variables are left blank

Processing Checks

All files have been checked for the following:1. All variables have been clearly defined and labelled2. All categories (value labels) have been clearly defined3. All cases have unique identification (no duplicates)4. The frequencies of expected respondents checked with the actual section and inconsistencies noted.5. Skip patterns have been verified6. Structure edits have been performed

Notes

The universe for this section is all household members 5 years and younger (Person to be interviewed is child's mother or adult household member in charge)